Income Taxes (Details 3) - USD ($) $ in Thousands	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 28, 2017	Dec. 29, 2016	May 28, 2015
Unrecognized Tax Benefits RollForward [Line Items]
Balance at beginning of year	$ 431	$ 414	$ 414	$ 102
Increases due to:
Tax positions taken in prior years	0	0	0	543
Tax positions taken in current year	0	0	0	0
Decreases due to:
Tax positions taken in prior years	0	0	0	0
Settlements with taxing authorities	(17)	0	0	(214)
Lapse of applicable statute of limitations	0	(312)	0	0
Balance at end of year	$ 414	$ 102	$ 414	$ 431